Railway-car brake



Dec. 21 1926.

P. CHESELKA RAILWAY CAR BRAKE P11611- May s, 1,926

` 4 Sheets-Sheet l Dec. 21 192.6., 'Lmss F. CHESELKA RAILWAY CAR BRAKE- F'ed May 6, 1926 4 Sheei$-5heet 2 FIG..

1 Y si': 16 i5 Dem-21 1926. y1,611,338

P. cHEsELKA v RAILWAY CAR BRAKE Filed May e, 192e 4 Sheets-Sheet 3 .,FlG. 5. A15- Dec. 21 ,1926.A

P. CHESELKA RAILWAY GAR BRAKE 4 Sheets-Sheet Filed may 6,

SHO: neuf? Patented Dec. 21, 1926.

narrar PETER CEIESELKA, F CLEVELAND, GHO.

RAILVfAY-'CAR BRAKE.

Application filed May 6, 1926;

will also Jfunction to prevent the car wheels from leaving the tracks. h

A. still further object of the invention 1s to provide improved means for aetuatingjthei above referred to emergency brakes.

Other objects and advantages 'of the in-V vention will be apparent duringV the course of the following description.

In the accompanying drawings formingl a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a` top plan view of a railway car truck with the brake system embodying this invention properly associated therewith,

Figure 2 is a vertical sectional view of the railway car truck and shows in elevation the emergency, track engaging brakes and their actuating means, the said bra-kes being in their inoperative positions,

Figure 3 is a similar view to Fig. 2, but shows the emergency brake elements arranged in their operative, track engaging positions,

Figure et is a vertical sectional view taken unen line lil-1V of 2,

Figure 5 is a horizontal fragmentary sectional view taken upon line Vli7` of Fig. 2,

Figure 6 is a detail perspective view of one of the emergency brake elementsactuating cam block and a fragmentary portion of its sulguliorting element,

Figure 7 is a similar view to Fig. 4, but shows the emergency, track engaging brake elements arranged in their operative positions,

Figure S is a fragmentary elevational view, part-ly in section, of one set of the emergency brake elements,

Figure t) is a vertical sectional view taken upon linc lli-1K. of Fig. S,

flrigure 10 is a horizontal sectional view taken upon ,line X-X of Fig. 8, and

Figure 11`is a horizontal sectional. view taken upon line Xlr-Xl of Fig. 8.

Serial No; 107,243.

1n the drawings, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 5 designates aI railway car carriage or pedestal frames having the journal bores 6 mounted thereon and within which the axles 7 are journaled. These ailles carry the convcn tional form of track engaging wheels 8, c shown. Y

Extending transversely of the car. carriage or aedestal frame 5 is a beam 9 which includes an elliptically-shaped enlargement 10, located inte mediate its ends, and the notched or'cutaway portions 11 located outwardly orr at each endof the elliptical portion 10. The extreme ends-or extremities-of` the beam 9 project beyond the sides of the carriageor pedestal frames7 as designated by the reference numeral 12 in Fig. 1.

The opposite sides of the carriage frame are cutaway at. 13 in amanner to provide pockets or the like around the opposite ends` of the beam 9. Bolted to the inner faces of' these cutawayv portions 13 are the angular guide plates 141 which are arranged with thev major portions of the same extending lat-erally inwardly from, the carriage sides and are arranged on opposite sides of and in spaced relation tothe side faces of the beam 9 to form slideways or grooves. The end.

portions of the beam 9V are illustrated in Figs. 1.1.' and as having depending` therefrom the inverted ltd-shaped members 15 which have their sides 15 arranged to co operate with theside faces of the end por-- tionsofthe beam 9 and the laterally inwardly extending portions of the angular guide plates 1st for forming the above' referred to slideways or grooves. Y

Vertieally, slidably mounted within each one of these slideways or grooves is a block 1G, best illustrated in Figs. 8 toll inclusive, which includes the side plates 17 held in spaced relation to each other by the centrally located spacer portion 18.

In the Figures 8 to 11, the plates 17 are illustrated as being provided with fulcruni pins lfl'upon which are pivoted the apertured ears 2O of the hook-like track engaging elements 21 which have their hooked lower ends retained inspaced relation to each other by the springs 22 received at their inner ends in pockets 23 formed in the oppositesides of the space-r member 18. The upper ends of these hook-like rail engaging elements 21 are clearly illustrated in Fig. 8 as being beveled at 211 to form collectively a V-shaped space.

Figure 1 clearly illustrates that there are four of the blocks and that they are arranged one on each side of each end portion of the beam 9. As each one of thesel blocks 16 carries two hook-like rail engaging elements 21, there will be two pairs of such elements for each rail, as best illustrated in Figs. 2 to t inclusive and 7. The two blocks arranged on one or the other side of the transversely extending beam 9, and functioning to engage both of the rails, are interconnected by a bar 24a which will nieve with the said blocks. Figures 2, 3 and 7 show the bars 24: as being provided with pins 25 projecting through the vertically extending elongated slots 26 formed in the opposite sides of inverted U-shaped guide members 27 which have their cross portions 23, see Fig. 1, received within the cutaway portions 11 of the beam 9 and fastened therein by the screws 29. These guide meinbers 27 will insure uniform vertical movement of the interconnected blocks 16.

Figures 1 to 3 inclusive illustrate the centrally located, elliptical portion 10 of the beam 9 as being transversely cut away 'to form'the perpendicularly extending'slot 30. Pivoted in this lslot 30 are a pair of inesning, sector-shaped gears 31 which are rigidly fastened to the shaft 32 arranged on opposite sides of thebeam 9 and extending longitudinally thereof. rFliese shafts 32 are held against the opposite sides of the beam 9 by the straps 33 which cooperate with the said beam for forming bearings for the shafts. These straps 33 are connected by the transversely extending bolts 3s'- which are arranged above and below the beam 9.

Figure 6 shows one end of one of the shafts 32 and illustrates the same as being formed with a laterally extending, wedge' shaped cam 35. These cams 35 are located, as shown in the various figures, in alineinent with the V-shaped spaces formed by the beveled upper ends 2li of the hoolr-lilre rail engaging elements 21. The heels 35a of the wedge-like cams 35 bear against the upper ends of the inner plates 17 of the adjacent blocks 16, as best illustrated in Figs. 1 and 4.

rlhe flat sides of the sector-shaped gears 31 are illustrated as having projecting radially therefrom the gear actuating arms 36 which have connected to the outer ends thereof the rods 37. By comparing- Figs. 2 and 3 and 4 and 7, it will be seen that by pulling longitudinally on one or both of the rods 37, the sector-shaped gears 31 will be rotated in unison, due to their intermeshing connection, and that the shafts 32 will be rotated for causing the heels 35?L of the wedgeshaped cams 35 to force the blocks 16 downwardly while the camming surfaces of the cams 35 will be forced between the beveled ends Q11 of the hoolnlilre elements 21 for causing the same to be shifted to move their lower ends toward each other whereby they will engage the underneath si 'faces of the rail beads or treads 3S, as best illustrated in Figs. 3 and 7.

To return the blocks 16, wedge-like cams 35, gears 31, and gear actuating arms 36 to their normal inoperative pos"3ioiis, as illustrated in Figs. 1, 2 and el, the upper ei of the plates 17 have fastened thereto the perpendicularly e-itending springs 3i) which have their upper ends entering the cutawe" portions 13 formed in the si riage or pedestal frames 5 for beimnv con nected to the elementslO.

lt will new be' seen that by pulling' upon the rods 37 the track engaging elements will be moved from their inoperative p tions above the traclr beads or treads 33 i-.ito Vtheir lowered, track tread engaging or clamping position. The engagement of these elements 21 with the traelr tread will checlr the travel of a car equipped with t'. 'i brake system and Ywill also prevent the wheels of a car from leaving the rails or traclrs.

ln Figs. and 3 the intermediate elli tical portion 10 of the beam 9 is illustra-teil as having the longitudinally extending cut away portions 41 formed therein and comA municating with the lower end of the slot 30 for forming, with this lower end, a horizontally extending slot. Figures 1 and i show a lever i2 pivoted in this last mentioned slot and having the linlrs 4:3 connect ed to the opposite ends thereof. The e links have their outer ends pivotally connected to rods "le which pass through trai t versely extending bars -ii and are prevent. from moving relative thereto by the stop collars 416. rlhes-e bars so have mountd upon ltheir outer ends the wheel tread e gaging brake shoes 47 which are support i by the chain linlrs connected to the can ria or frames it will now be seen that by pulling upon one of the rods -1, the brake actuating bar il-.5 directly connected thereto will be. moved for applying the brake shoes 47 fastened to the opposite ends of this bar. rjhis moreinent of the bar will cause the linlr i3 connected thereto to be shifted for rocking the lever l2 to nieve the remaining link ni3. connected to its opposite end, in a manne;l to shift the second brake shoe bar for applying the. second set of brake shoes 17.

It is to be understood that the form of this invention herewith shown and described is to be taken as a preferred example of the saine, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the llJi lill

'spirit oit' the invention or the scope of the subjoined claims.

Having thus described the invention, I claim l. In apparatus ot the type described, the combination with a car carriage having rail engaging wheels, of a sliding block carried by each side oi said carriage, means for interconnecting said blocks for causing them to move in unison, a pair of rail gripping elements pivotally carried by each of said blocks, and means for sliding said blocks downwardly and at the same time pivoting said elements into their rail gripping positions.

2. In apparatus of the type described, the combination with a car carriage having rail engaging wheels, of a beamextending transversely of said carriage, clocks slidably carried by the sides ot said carriage and arranged on opposite sides of the end portions of said beam, a pair of rail gripping elements pivotally carried by each of said blocks, and mechanism for slidably moving all of said blocks downwardly in unison and at the same time pivoting said elements into their rail gripping positions.

3. In apparatus oi' the type described, the combination with a car carriage having rail engaging wheels, of a beam extending transversely of said carriage, blocks slidably carried by the sides oit' said carriage and arranged on opposite sides of the end portions of said beam, a pair of rail gripping elements pivotally carried by each of said blocks, mechanism for slidably moving all of said blocks downwardly in unison and at the same time pivoting said elements into their rail gripping positions, said means including a shai't journaled on each side of said beam and extending longitudinally thereof, a wedge-shaped cam carried by each end ot each shaft and arranged to engage the blocks and rail gripping elements, and means 1for rocking said shafts in unison.

Ll. In apparatus of the type described, the combination with a car carriage having rail engaging wheels, of a beam extending transversely ot said carriage, blocks slidably carried by the sides of said carriage and are ranged on opposite sides ot the end portions ot' said beam, a pair of rail gripping elements pivotally carried by each of said blocks, mechanism for slidably moving all oi said blocks downwardly in unison and atthe same time pivoting said elements into their rail gripping positions, said means including a shat't journaled on each side of said beam and extending longitudinally thereof, a wedge-shaped cam carried by each end of each shaft and arranged to engage the blocks and rail gripping elements, means tor rocking said shafts in unison, said last mentioned means including a pair of intermeshing sector gears mounted one on each ot said shafts, and an arm extending radially froin each ot said sector-shaped gears.

5. In apparatus oi' the type described, the `combination with a Car carriage having rail engaging wheels, of a sliding block carried by each side ot' said carriage, a pair of rail gripping elements carried by each of said blocks and adapted to pivot toward and away from each other in vertical planes extending at right angles to the vertical planes of said rail engaging wheels, and a pivoted wedge-like cam positioned at each side oi' said carriage and adapted topivot in planes extending vertically at right angles to the rail gripping elements tor engaging the sliding blocks and the upper ends of said elements to move the blocks downwardly and at the same time pivot said elements into their rail gripping positions.

6. In apparatus of the type described, the combination with a car carriage having rail engaging wheels, oit a sliding blocl carried by each side of said carriage, a pair of rail gripping elements carried by each of said blocks and adapted to pivot toward and away from each other in vertical planes ex tending at right anales to the vertical planes of said rail engaging wheels, a pivoted wedge-like cam positioned at each side oi said carriage and adapted to pivot in planes extending vertically at right angles to the rail gripping elements 'for engaging the sliding blocks and the upper ends of said elements to move the blocks downwardly and at the same time pivot said elements into their rail gripping positions, and means for returning said blocks into their normal inoperative positions.

7. In apparatus ot the type described, the combination with a car carriage having rail engaging wheels, of a sliding block carried by each side oi said carriage, a pair of rail gripping elements carried by each 0f said blocks and adapted to pivot toward and away from each other in vertical planes extending at right angles to the vertical planes of said rail engaging wheels, a pivoted wedge-like cam positioned at each side of said carriage and adapted to pivot in planes extending vertically at right angles to the rail gripping elements for engaging the sliding blocks and the upper ends oit' said elements to move the blocks downwardly and at the same time pivot said elements into their rail gripping positions, means for sliding said blocks into their normal inoperative positions, and means for pivoting said rail gripping elements into their 1noperative positions as the blocks are returned to their normal inoperative positions.

8. In apparatus of the type described, the combination with a car carriage having rail engaging wheels, and a transversely extending beam carried thereby, of a pair of horizontally movable bars, a brake shoe carried by each end of each bar and adapted to be moved lnio engagement Wlth the treads of seid rml engzrglng Wheels, a lever plvotally carried by said transverse beam, links pvotally connected to the opposite ends of said lever and to the brake carrylng bars, and a rofl connected to each of sind bars, whereby a pull upon one of Said rods for moving e bar to apply the brake shoes Carried by the latter will cause the links and lever to actuee the remaining bnr for applying the brake shoes carried by the seme.

ln testimony Wheree'll I ax my Signature.

PETER CHESELKA. 

